Swelling after a severe session - has any one else had similar experience?

I had a severe session with kicks and knees from behind. I was very bruised and swollen for about a week or 10- days. It's now been almost 2 weeks, all of the bruising and fluid in the sack is gone. My concern is that one of my testes is still swollen and somewhat hard, still a little tender but not as painful as it originally was. Has anyone else experienced this type of after effects? It's possible that the internal swelling will continue to go down, I'm just not sure how concerned I should be?